CT Myelography Diagnosis of Brachial Plexus Pre-ganglionic Injury
ZHANG Shuixing, ZHANG Xuelin, ZHOU Qianjing,et al. Department of Diagnostic Radiology, Nanfang Hospital, No.1 Military Medical University, Guangzhou, Guangdong Province 510515, P. R. China
Objective To evaluate CT myelography (CTM) in diagnosing brachial plexus pre-ganglionic injury.Materials and Methods Eighteen cases with brachial plexus injury underwent thin-slice HRCT scanning after the examination of conventional lumbar puncture myelography. CT findings were compared with surgical and somatoevoken potential results, which were used as the standards. Results The main signs of brachial plexus pre-ganglionic injury were lack of nerve root, post-traumatic spinal meningocele, displacement and deformity of spinal cord, and "black line" sign. CTM detected 33 injured nerve rootlets. The sensitivity, specificity and accuracy of CTM in diagnosing pre-ganglionic brachial plexus were 93.9%, 75.0% and 90.2%, respectively.Conclusion CT Myelography can show the nerve rootlets within the intervertebral foramen, thus, help make a correct qualitative and level diagnosis in brachial plexus pre-ganglionic injuries.
【CateGory Index】： R816.1